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Supplemental Information

Supplementary material providing different tables

DOI: 10.7287/peerj.preprints.1873v1/supp-1

Dataset from the diquat experiment. Description of variables inserted as comments on variable names

DOI: 10.7287/peerj.preprints.1873v1/supp-2

Dataset including repeated measures for the carotenoid-supplement experiment. The dataset excludes birds receiving diquat (see Methods). Description of variables inserted as comments on variable names

DOI: 10.7287/peerj.preprints.1873v1/supp-3

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Esther García-de Blas performed the experiments, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Rafael Mateo performed the experiments, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Carlos Alonso-Alvarez conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Animal Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

The experimental protocol was approved by the University of Castilla-La Mancha’s Committee on Ethics and Animal Experimentation (reference number 1201_08).

Data Deposition

The following information was supplied regarding data availability:

Dryad

Funding

Esther García-de Blas was supported by a predoctoral grant (JAE-PRE) from the Consejo Superior de Investigaciones Científicas (CSIC) co-financed by Fondo Social Europeo (EU). This study was funded by Consejería de Educación y Ciencia, Junta de Comunidades de Castilla la Mancha (project ref.: PII1I09-0271-5037) and Ministerio de Economía y Competitividad (CGL2009-10883-C02-02) from the Spanish Government. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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